Apparatuur informatie:

GD90 is a GSM telephone. The following features are included as standard:
1. Triple Rate which includes Full Rate, Half Rate and enhanced Full Rate speech, codec.
2. Dual Band, GSM900 and GSM1800 operation.
3. Desktop Handsfree Function - comprised of integral echo cancellation and noise suppression.

The manual is structured to provide service engineering personnel with the following information and procedures:
1. General and technical information - provides a basic understanding of the equipment, kits and options, together with
detailed information for each of the major component parts.
2. Installation and operating information - provides instructions for unpacking, installing and operating the equipment.
3. Servicing information - provides complete instructions for the testing, disassembly, repair and reassembly of each major
component part. Step-by-step troubleshooting information is given to enable the isolation and identification of a
malfunction, and thus determine what corrective action should be taken. The test information enables verification of the
integrity of the equipment after any remedial action has been carried out.
4. Illustrated parts list - provided to enable the identification of all equipment components, for the ordering of spare/
replacement parts